F1 - Sumita

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.625881 n_e = 1.630040	V_d = 35.64 V_e = 35.39	n_F - n_C = 0.017557 n_F' - n_C' = 0.017802	Coloring: 0.32 - 0.36 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.5712758 C2 = -0.0085633297 C3 = 0.023782403 C4 = 0.00070039703 C5 = 0.0000079868172 C6 = 0.0000029847088

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.608190
n _s	1.612194
n _r	1.617890
n _C	1.620730
n _C'	1.621538
n _0.6328	1.622296
n _D	1.625727
n _d	1.625881
n _e	1.630040
n _F	1.638288
n _F'	1.639340
n _g	1.648551
n _h	1.657469
n _i	1.673600
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7142
P_C,A'	0.3198
P_d,C	0.2933
P_e,C	0.5302
P_g,d	1.2911
P_g,F	0.5845
P_h,g	0.5079
P_i,g	1.4266
P_C',t	0.7602
P_e,C'	0.4842
P_F',e	0.5296
P_i,F'	1.9512

transmittance: 10 mm
τ_0.31	0.02
τ_0.32	0.27
τ_0.33	0.613
τ_0.34	0.808
τ_0.35	0.901
τ_0.36	0.947
τ_0.37	0.963
τ_0.38	0.98
τ_0.39	0.988
τ_0.4	0.99
τ_0.42	0.995
τ_0.44	0.997
τ_0.46	0.997
τ_0.48	0.997
τ_0.5	0.998
τ_0.55	0.998
τ_0.6	0.998
τ_0.65	0.998
τ_0.7	0.998
τ_0.8	0.998
τ_1.06	0.99
τ_1.5	0.982
τ₂	0.939

transmittance: 25 mm
τ_0.32	0.037
τ_0.33	0.294
τ_0.34	0.588
τ_0.35	0.771
τ_0.36	0.874
τ_0.37	0.91
τ_0.38	0.95
τ_0.39	0.971
τ_0.4	0.975
τ_0.42	0.989
τ_0.44	0.992
τ_0.46	0.992
τ_0.48	0.992
τ_0.5	0.996
τ_0.55	0.996
τ_0.6	0.996
τ_0.65	0.996
τ_0.7	0.996
τ_0.8	0.996
τ_1.06	0.975
τ_1.5	0.957
τ₂	0.854

Poisson coef.: 0.227
Rigidity: 238 Pa*10⁸
Young module: 584 Pa*10⁸
Knoop hardness: 469
Abrasion: 150

Climatic resistance: 1
Resistance to acids: 1

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	102